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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, is an icy winter month in Lancaster, Illinois, with an average temperature fluctuating between 37.9°F (3.3°C) and 24.8°F (-4°C). January stands out as Lancaster's coldest month, with an average high-temperature of 37.9°F (3.3°C) and a low-temperature of 24.8°F (-4°C). Weather in January »
Weather in February
February, the last month of the winter in Lancaster, is a chilly month, with an average temperature varying between 29.1°F (-1.6°C) and 43°F (6.1°C). A minimal variation is noted in Lancaster's average high-temperature at the onset of February, reaching a frosty 43°F (6.1°C) from January's 37.9°F (3.3°C). Weather in February »
Weather in March
The first month of the spring, March, is a fresh month in Lancaster, Illinois, with an average temperature varying between 53.8°F (12.1°C) and 38.3°F (3.5°C). With the transition into March, Lancaster experiences an increase in average high-temperatures, moving up from a chilly 43°F (6.1°C) in February to a cool 53.8°F (12.1°C). Weather in March »
Weather in April
April in Lancaster, Illinois, is a comfortable spring month, with temperature in the range of an average low of 48.2°F (9°C) and an average high of 64.9°F (18.3°C). With the arrival of April, the average high-temperature transitions from a cool 53.8°F (12.1°C) in March to a comfortable 64.9°F (18.3°C). Weather in April »
Weather in May
The last month of the spring, May, is a moderately hot month in Lancaster, Illinois, with an average temperature varying between 58.1°F (14.5°C) and 74.3°F (23.5°C). The shift from April to May brings an increase in the average high-temperature, moving from a comfortable 64.9°F (18.3°C) to a warm 74.3°F (23.5°C). Weather in May »
Weather in June
The first month of the summer, June, is also a moderately hot month in Lancaster, Illinois, with an average temperature ranging between min 65.8°F (18.8°C) and max 82.9°F (28.3°C). With the transition into June, Lancaster experiences a subtle uplift in average high-temperatures, adjusting from a moderately hot 74.3°F (23.5°C) in May to a still warm 82.9°F (28.3°C). Weather in June »
Weather in July
July, like June, in Lancaster, Illinois, is another warm summer month, with an average temperature ranging between min 67.5°F (19.7°C) and max 84.7°F (29.3°C). July is the warmest month of the year, registering average temperatures as high as 84.7°F (29.3°C) and as low as 67.5°F (19.7°C). In July, the heat index is appraised at a fiery hot 96.8°F (36°C). Weather in July »
Weather in August
August, the last month of the summer in Lancaster, is also a moderately hot month, with an average temperature fluctuating between 65.7°F (18.7°C) and 83.1°F (28.4°C). Lancaster marks the start of August with an average high-temperature of a still moderately hot 83.1°F (28.4°C), hinting at a slight fluctuation from July's 84.7°F (29.3°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Lancaster, Illinois, with an average temperature varying between 60.6°F (15.9°C) and 78.8°F (26°C). The onset of September marks an average high-temperature of a still warm 78.8°F (26°C), hardly differing from August's 83.1°F (28.4°C). Weather in September »
Weather in October
October, like September, in Lancaster, Illinois, is another enjoyable autumn month, with an average temperature varying between 49.6°F (9.8°C) and 66.6°F (19.2°C). As September transitions to October, the average high-temperature falls from a moderately hot 78.8°F (26°C) to an enjoyable 66.6°F (19.2°C). Weather in October »
Weather in November
November, the last month of the autumn in Lancaster, is also a fresh month, with temperature in the range of an average high of 52.9°F (11.6°C) and an average low of 38.3°F (3.5°C). A moderate decline in the average high-temperature is seen during November, decreasing from an enjoyable 66.6°F (19.2°C) in October to a fresh 52.9°F (11.6°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Lancaster, Illinois, with an average temperature ranging between min 31.3°F (-0.4°C) and max 42.8°F (6°C). Lancaster in December demonstrates a small temperature transition, adjusting from an average high of a cool 52.9°F (11.6°C) in November to a frosty 42.8°F (6°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest month in Lancaster?
January brings the lowest temperatures, with an average high of 37.9°F (3.3°C) and an average low of 24.8°F (-4°C).
How many days does it rain in Lancaster?
In Lancaster, during the entire year, the rain falls for 155.6 days and collects up to 34.65" (880mm) of precipitation.
When does it snow in Lancaster?
January through April, November and December are months with snowfall.
When does it snow the most in Lancaster?
January is the month with the most snowfall in Lancaster. Snow falls for 6.8 days and accumulates 1.46" (37mm) of snow.
How much does it snow in Lancaster?
Throughout the year, there are 21 snowfall days, and 5.39" (137mm) of snow is accumulated.
What is the month with the least sunshine in Lancaster?
January has the least sunshine of the year in Lancaster, Illinois, with an average of 4.3h of sunshine.
When is the lowest UV index in Lancaster?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Lancaster, Illinois.
When is Daylight Saving Time (DST) in Lancaster?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Lancaster, Illinois, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What is the wettest month in Lancaster?
April is the month with the most rainfall in Lancaster, Illinois. Rain falls for 16.4 days and accumulates 4.72" (120mm) of precipitation.
What is the most humid month in Lancaster?
The months with the highest humidity in Lancaster, Illinois, are May and July, with an average relative humidity of 80%.
When it does not snow in Lancaster?
May through October are months without snowfall in Lancaster, Illinois.
What is the month with the highest UV index in Lancaster?
May through August, with an average maximum UV index of 6, are months with the highest UV index in Lancaster, Illinois.
When are the longest days in Lancaster?
With an average of 14h and 48min of daylight, June has the longest days of the year.
What month has the most sunshine in Lancaster?
The month with the most sunshine is June, with an average of 10.6h of sunshine.
What is the hottest time of year in Lancaster?
With its average high temperature of 84.7°F (29.3°C) and a low of 67.5°F (19.7°C), July is regarded as the warmest month in Lancaster.
What is the driest month in Lancaster?
September is the month with the least rainfall in Lancaster. Rain falls for 12.3 days and accumulates 1.85" (47mm) of precipitation.
What is the least humid month in Lancaster?
October is the least humid month, with an average relative humidity of 70%.
What is the month with the shortest days in Lancaster?
The month with the shortest days in Lancaster, Illinois, is December, with an average of 9h and 30min of daylight.
Average temperature
Lancaster, IL
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37.9°F).
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure
Lancaster, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Lancaster, IL
- Average wind speed in January:
10mph - Average wind speed in February:
10.1mph - Average wind speed in March:
9.9mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
5.9mph - Average wind speed in August:
6mph - Average wind speed in September:
6.7mph - Average wind speed in October:
8.6mph - Average wind speed in November:
9.1mph - Average wind speed in December:
9.4mph
The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity
Lancaster, IL
The months with the highest relative humidity are May and July (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Lancaster, IL
- Average rainfall in January:
2.44" - Average rainfall in February:
2.48" - Average rainfall in March:
3.11" - Average rainfall in April:
4.72" - Average rainfall in May:
3.5" - Average rainfall in June:
3.5"
- Average rainfall in July:
2.91" - Average rainfall in August:
2.32" - Average rainfall in September:
1.85" - Average rainfall in October:
2.48" - Average rainfall in November:
2.72" - Average rainfall in December:
2.6"
The wettest month (with the highest rainfall) is April (4.72").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days
Lancaster, IL
- Average rainfall days in January:
9.4 days - Average rainfall days in February:
9.6 days - Average rainfall days in March:
14.9 days - Average rainfall days in April:
16.4 days - Average rainfall days in May:
18.3 days - Average rainfall days in June:
14.1 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
12.3 days - Average rainfall days in October:
10.8 days - Average rainfall days in November:
9.9 days - Average rainfall days in December:
10.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (9.4 days).
Average snowfall
Lancaster, IL
The month with the highest snowfall is January (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Lancaster, IL
- Average snowfall days in January:
6.8 days - Average snowfall days in February:
6 days - Average snowfall days in March:
2.6 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
1.1 days - Average snowfall days in December:
4.2 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Lancaster, IL
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 3min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
4h and 2min - Average sunshine in February:
4h and 3min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 2min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 4min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 1min - Average sunshine in October:
6h and 5min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days
Lancaster, IL
- Average sunshine days in January:
15.8 days - Average sunshine days in February:
13.1 days - Average sunshine days in March:
12.5 days - Average sunshine days in April:
11.8 days - Average sunshine days in May:
10.3 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
12.3 days - Average sunshine days in August:
15.8 days - Average sunshine days in September:
15.9 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
17.5 days - Average sunshine days in December:
16.6 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (10.3 days).
Average UV index
Lancaster, IL
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Lancaster, IL
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility
Lancaster, IL
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Lancaster, Illinois, USA
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